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61,005 resultsShowing papers similar to Occurrence of EBSL and quinolone resistance genes among Escherichia coli and Klebsiella pneumoniae isolated from poultry, domestic pigs and environment in the Msimbazi River Basin in Tanzania
ClearPathogenic Escherichia coli Strains Recovered from Selected Aquatic Resources in the Eastern Cape, South Africa, and Its Significance to Public Health
Researchers recovered pathogenic Escherichia coli strains from aquatic environments in the Eastern Cape of South Africa, finding evidence of antimicrobial resistance genes and highlighting the public health significance of waterway contamination as a pathway for resistance proliferation.
Evaluation of the Genetic Diversity of Antibiotic-Resistant Klebsiella Pneumoniae Isolated from Diarrheal Humans and Poultry using Multilocus Sequence Typing
Researchers evaluated the genetic diversity of antibiotic-resistant Klebsiella pneumoniae isolates from diarrheal human patients and poultry in Iraq using multilocus sequence typing of four housekeeping genes, finding high antibiotic resistance rates -- 100% resistance to ampicillin -- and genetic overlap between human and poultry isolates, suggesting possible cross-species transmission.
Polymyxin Resistance in Salmonella: Exploring Mutations and Genetic Determinants of Non-Human Isolates
Researchers screened over 1,100 Salmonella samples from animals, food, and the environment in Brazil for resistance to polymyxin antibiotics, which are considered last-resort treatments for serious infections. They identified several strains carrying both chromosomal mutations and mobile resistance genes that could spread between bacteria. The findings highlight the growing challenge of antibiotic resistance emerging from non-human sources in the food production chain.
Potential of waterbodies as a reservoir ofEscherichia colipathogens and the spread of antibiotic resistance in the Indonesian aquatic environment
This review analyzes the factors driving the spread of pathogenic Escherichia coli and antibiotic-resistant bacteria in Indonesian aquatic environments, including antibiotic misuse, inadequate waste treatment, and poor industrial waste management. Indonesian rivers serve as vectors for both pathogenic E. coli and antimicrobial resistance genes, posing significant public health risks.
Antibiotic Resistance Genes in Food Animal Production: Environmental Implications and One Health Challenges
This review examines how antibiotic use in livestock and aquaculture contributes to the spread of antimicrobial resistance genes across the human-animal-environment interface. Researchers found that a substantial proportion of resistance genes detected in farm environments are shared with those found in human clinical settings. The study emphasizes the need for a One Health approach to surveillance and highlights the role of environmental reservoirs, including those contaminated with microplastics, in disseminating resistance.
Transmission and Evolution of Antibiotic Resistance Genes and Antibiotic-Resistant Bacteria in Animals, Food, Humans and the Environment
This research review shows that antibiotic-resistant bacteria and their genes are now found everywhere—in people, animals, food, and the environment—not just in hospitals like we used to think. The bacteria can easily share their resistance genes with each other, allowing "superbugs" to spread rapidly between different environments. This matters because it means antibiotic-resistant infections are becoming harder to treat and can reach us through multiple pathways, making it crucial to tackle this problem across all areas of health and the environment at once.
Antibiotic resistance profiles of Escherichia coli isolated from the floating islands and water of Çat Dam Lake, Adiyaman, Turkey
Antibiotic-resistant E. coli bacteria were isolated from water samples and floating islands in a Turkish dam lake, with resistance profiles linked to agricultural runoff and human waste inputs. This is relevant to microplastic research because plastic surfaces in water environments are known to harbor antibiotic-resistant bacteria and resistance genes.
The Sources and Potential Hosts Identification of Antibiotic Resistance Genes in the Yellow River, Revealed by Metagenomic Analysis
Researchers used metagenomic analysis to characterize antibiotic resistance genes in the Yellow River, identifying their sources and potential bacterial hosts, finding that resistance genes against colistin and carbapenems were present and tracing their origins to agricultural, municipal, and industrial inputs along the river.
Antibiotic Resistance Mediated by Escherichia coli in Kuwait Marine Environment as Revealed through Genomic Analysis
Researchers used genomic analysis to identify antibiotic resistance genes in Escherichia coli isolated from mollusks and coastal water samples in Kuwait's marine environment. The study found that Kuwait's coastal waters, vulnerable to sewage contamination from storm outlets and waste disposal, harbor E. coli carrying multiple antibiotic resistance gene elements including integrons and plasmids.
Escherichia coli Phylogenetic and Antimicrobial Pattern as an Indicator of Anthropogenic Impact on Threatened Freshwater Mussels
Researchers analyzed E. coli isolated from freshwater mussels (Margaritifera margaritifera and Potomida littoralis) in two Portuguese rivers with different levels of anthropogenic contamination, finding greater antibiotic resistance and more diverse phylogenetic profiles at the more contaminated site. The results suggest E. coli from freshwater mussels can serve as an indicator of antimicrobial resistance pressure from human activities.
Assessing antimicrobial and metal resistance genes in Escherichia coli from domestic groundwater supplies in rural Ireland
Researchers analyzed E. coli bacteria from private drinking wells in rural Ireland, finding that antibiotic resistance genes were present in 17% of isolates, likely arriving in groundwater via agricultural runoff rather than forming there. Importantly, no clear link was found between metal contamination and antibiotic resistance levels, suggesting livestock farming practices are the primary driver.
Identifying sources of antibiotic resistance genes in the environment using the microbial Find, Inform, and Test framework
Researchers used a microbial tracking framework to identify sources of antibiotic resistance genes in the environment, confirming that bovine operations and land-applied waste contribute to offsite migration of resistant microorganisms. The study modeled how far these resistance genes can spread overland and downstream from their sources. The findings support the need for targeted monitoring of antibiotic resistance around agricultural waste sources to reduce exposure risks.
Antibiotic resistance genes (ARGs) in agricultural soils from the Yangtze River Delta, China
Researchers surveyed 241 agricultural soil samples across the Yangtze River Delta and found antibiotic resistance genes (ARGs) ubiquitous in all samples, with sulfonamide and tetracycline ARGs dominant and antibiotic concentrations — introduced via irrigation and manure — identified as the primary driver of ARG prevalence over other soil properties.
Antibiotic resistant bacteria in diverse ecological water samples are a threat to Human Food security
Researchers isolated antibiotic-resistant bacteria from three aquatic sources -- the River Ravi, a fish farm, and underground drinking water -- identifying 33 bacterial strains across genera including Enterobacteriaceae, Pseudomonas, and Staphylococcus, and finding resistance to 8 of 10 antibiotic classes with multiple antibiotic resistance indices ranging from 0.43 to 0.88.
Modeling Antimicrobial Resistance Spread in Riverine Ecosystems: A Multidisciplinary Approach
Researchers developed a multidisciplinary modeling framework to simulate antimicrobial resistance (AMR) spread in riverine ecosystems, incorporating wastewater discharge, agricultural runoff, and microplastic-associated resistance gene transfer. The model predicted AMR gene concentrations along river corridors and identified intervention points for reducing environmental AMR dissemination.
Assessment of Microbial Load and Multidrug-Resistant Profile of Bacterial Flora from Cattle in Bauchi, Nigeria
Researchers isolated Enterococcus spp. and Escherichia coli from cattle rectal swabs at two farm sites in Bauchi, Nigeria, and assessed their multidrug-resistance profiles using the Kirby-Bauer disc diffusion method. Microbial loads were high (up to 3.4 x 10^12 CFU/g) and most isolates demonstrated resistance to multiple antimicrobial agents, raising food safety and antimicrobial resistance concerns.
Comparison of Antibiotic Resistance of Escherichia coli Populations from Water or Sediment in Rivers Environments
This study compared antibiotic-resistant E. coli in river water and sediment, examining how bacteria form biofilms and stabilize resistance in these environments. Microplastics in aquatic environments are known to promote biofilm formation and concentrate antibiotic resistance genes, amplifying this public health concern.
Assessment of Bacterial Isolates Associated with Microplastics and their Resistance to Antibiotics from Rivers Ureje, Emirin, Ogbese, Odo-Ayo and Elemi in Ado- Ekiti, Ekiti- State, Nigeria
Researchers isolated bacteria from five rivers in Ado-Ekiti, Nigeria associated with microplastic surfaces and tested their antibiotic resistance profiles, finding that microplastics harbored pathogenic bacteria including E. coli, Klebsiella pneumoniae, and Salmonella typhi with multi-drug resistance patterns.
Emerging Issues on Antibiotic-Resistant Bacteria Colonizing Plastic Waste in Aquatic Ecosystems
Researchers found antibiotic-resistant bacteria colonizing plastic waste submerged in an inland water body, including species related to human pathogens like Klebsiella. All isolated bacteria showed high resistance to multiple antibiotics, and they carried numerous antibiotic resistance genes. This is concerning because plastic waste in waterways can serve as a platform for drug-resistant bacteria to multiply and potentially spread to humans through contaminated water.
Occurrence of toxic metals and their selective pressure for antibiotic-resistant clinically relevant bacteria and antibiotic-resistant genes in river receiving systems under tropical conditions
Researchers sampled rivers in the Democratic Republic of Congo receiving hospital wastewater and found high levels of heavy metals, antibiotic-resistant bacteria, and antibiotic-resistance genes in sediments, with several toxic metals strongly correlated with the persistence of drug-resistant microbes — highlighting the need for better urban wastewater management in tropical developing countries.
Evaluating the role of microplastics and wastewater in shaping Vibrio spp. and antibiotic resistance gene abundance in urban freshwaters
Researchers sampled water and microplastic biofilms from urban South African rivers and found that microplastics disproportionately enriched Vibrio spp. and tetracycline resistance genes relative to the surrounding water, suggesting microplastics selectively concentrate pathogens and antibiotic resistance genes.
Occurrence of Antimicrobial Resistance in the Environment in Germany, Austria, and Switzerland: A Narrative Review of Existing Evidence
A narrative review synthesized evidence on antibiotic resistance in environmental settings across Germany, Austria, and Switzerland, documenting that resistant bacteria and resistance genes are widespread in soil, water, and wastewater systems. The review identifies agricultural antibiotic use and wastewater discharge as the dominant pathways driving environmental antibiotic resistance in these three countries.
Detection of virulence genes in bacteria associated with microplastics from selected Rivers in Ado-Ekiti, Nigeria
Researchers investigated virulence genes in bacteria associated with microplastics collected from five rivers in Ado-Ekiti, Nigeria over a 24-month biweekly sampling program, isolating 16 bacterial species including Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Staphylococcus aureus. The study characterized antibiotic susceptibility patterns and virulence gene profiles of these microplastic-associated bacteria, highlighting the role of microplastics as vectors for pathogenic and antibiotic-resistant organisms in Nigerian freshwater systems.
Detection of antimicrobial resistance in Escherichia coli and Salmonella spp. Originated from cultivated oysters and estuarine waters
This study detected antimicrobial-resistant bacteria in oysters and estuarine waters, raising concerns about how aquatic environments serve as reservoirs for antibiotic resistance that can reach humans through seafood consumption. The findings are relevant to microplastic research because microplastics are known to harbor and concentrate antibiotic resistance genes on their surfaces.